Ruben Flores, a Mexican-born San Francisco resident of nine years, decided he had enough of Donald Trump after the president halted entry to the U.S. for citizens of seven predominantly Muslim countries.

“I have a friend who is Islamic-American, and I just felt I had to do something,” Flores said. “This president is crazy.”

The sign, located on a hill overlooking 15th Avenue Steps Park, can be seen from several blocks away. The city has not yet contacted Flores about what he wrote, but he said he expects officials to be in touch over graffiti concerns.

The other day, he ran into a neighbor at the new Safeway on Irving Street who'd spotted the sign. “She loved it," Flores said. "Everyone loves it."